Artesian-well-drilling machine



M. PRADO.

ARTEVSIAN WELL DRILLING MACHINE.

- APPLICATION FILED ^UG.2| |9l9- 1,333,442. Patented Mar. 9,1920.

NSM L l Y den drop off'tlnie liit',r maintainingi'uniforin the distance of the drop irrespec'tiver ofA varying Ydepths to which the drillis sunk' I Y1,array/i412; l

kunnen,uranio,or Mavim, iviiixifco.

.ARTEsrAN-WELIl-DRILMNG MACHINE.

To all whom i?? may concern VAdrawing'in which: Y Y l Y e Figure 1 isa lateral long1tud1nal eleva? Be it known-that I, ll/IArVfLv Briand@ citizen ofthe UnitedMeXican States, resid? ing at Tacuba, Federal District," Mexico', have invented certain nevi; and usefillln# provements in Artesian-'WellDrilliiig Ma'- chines, of which the Yfollovin'g'is' a specifi- Y cation. y v ,c c Y p This invention relates to drilling machines and its principalobjfect is to produce axsud'- infrc-peated dropping operaticns.` r This may bef obtainedy by ymeans ot anautornaticv ari rangement 'for lengtheningV at each opera-y, tion the. auxiliary cable on whichV the bit hangs, an extent' determined by tliejincrea'sed j a depth of the Well-shaft.l

Another object '4 ,fthis invention is to pro-Y vide the druml on which is Wound the aux! iliary cable of the' bit, withV van automatic brake which permits the cable-tomuniooill in proportion to theyincreased depth ofthe i Well-shaft produced each stroke oftheA bit."

These objects may vbeiobtain'ed'kby` the: accompanying mechanism' shownv in the" tion of the machirief; v K v. Fig.;.2his applanviw of same'.

whichAV raises;y the bit c feeding means for the bit-carrying cable.

Regarding the drawing: (1)v is the frame- Work or frame on Which isl mounted the` main axle (2), which is directly connected` rwith a motor or-some other means of movement (not shown). The'axle (2) has rigidly secured thereto a pulley (3) which y throughk belt (4) transmits the movement to the loose pulley;(5) onthe shaft (6), which,

on its vend outside of the frame, carrles a pulley (7) connected With the Vbelt (8) to transmit movement in the reverse direction to pulley (9) secured to'shaft (10). Mounted on the shaft (10) is a pinion (11), Which ,meshesl with the gear-Wheel (12) mounted loosely on the shaft ,(13). The gear-Wheel (12) his rigidly secured thereto adisk (14),

to' which is riveted ak projecting butt l(15),

which when turning around Will push against an abutment (16) riveted upon rim (17) of Specification' of Lette`rsiIPatei11j'.` Application md igst 12, 11919.l serial Np. 316,949,

Fig. 4 is a vievv'in detail of the automatic Van adjusting nut j band (42) With the frame lare the asten- Patented Mar. 9, 111920,

the separate'.A ivheel"l (18) secured to thel shia (113) .i

,Fistened to 'the shaft (isyfisihef Crank l Whichby means of a pivot is connected with connecting' rod ,(201) ',v pivoted at,l (21) to oneend'ofthe balance-beam (22), vvhiclrhasV itsipo'int ofsupport in (23) .i vThe.*balance*- beam (22) carries two pulleys (24) and (25)', through which passes the auxiliary 1 bitkclarryiing fcable (26) The bitecarrying cable is provided at vits end with a clamp `(27), Vwhichengages'the main cable (28). The" cable M(28);passes through ablocl or pulley (not shown) 'oiE the support (29),

and is wound around the drum (30)'. The drum (w30) receives movement from ,the pu`lwhich, by.. means of clutch driven thereby transmitsgreverse movement to the pulley (33) which through shaft (34),

moves the pinion (35)transmitting,move-v A ment to the V,geariwheel (36) whichV isl con-j nected with tlieishaft `(37) of said Vdrum e The va'uiiiliary*cable (26)- `is carried reel provided ateach endWithy a hand brake, ofwvhlc'lrthe brake yband (39) is op-l erated 4lever (40),y YY/lnichadjusts; it to allovv the cable to uncoil only as much AafsY may *beI necessary, as a'consequenceof the holeproduced the drilllbit. Another brake (41)when "it is; applied combination with thezbrake,.i(39f) Will set the-reel,

hisl brake`(4'1) 'consists of the bandA one end of which is attached at l(43) to the leverlf), and by means of the springs (45) it is attached to the frame c This lever (44) is also joined through a fasten- Vingrod (46) to the balancing-beamV (22).

The'other endof the band (42) is. connected' with the lever (4.4),)me'ans cfa' screwor ing rod (48) andlink `(49).

prcventgit'yfrom uncoiling the. cable.' f

Connecting the vrlhe lever (50) serves to throw the clutch (32) andconnect the pulley y(31) hto the shaft (2),'While-the lever (51) Will connect the clutch (52), in order to transmit movement from the loose pulley (5).

l Fig. 2, shows a lever (53) connected with the shaft (54) `'which throughthe rod (55) restrains the band brake (56) ofthe drum y.

y (50), in order to prevent the bit from drop-V '.ping very fast after changing tools or 25 of the connecting parts.

when it is necessary to lower the bit again in the wellshaft or hole made.

The drill-bit and the side of the balanceybeam to which it is connected normally tend Vto move downwardly under the influence of gravity. When the parts are in this position and the clutch 52 is closed, so as to complete the train of connections from the main shaft 2 to the driving gear l2, the rotation of the gear 12 causes the projection 15 thereon to engage the abutment 16 on the Wheel 18 andthereby drive the crank shaft 13,

lwhich through the connecting rod 20 raises When the balance-beam moves. to drop the drill-bit, the cord' Vpulls the end of the lever Maud thus releasesthe brake band' 42 to permit the cablewto be unwound sufficiently to compensate 4 for the increased depth of the well-shaft incidental to each drop of the drill-bit. Thismovement of the cable is limited to the actual increase of depth by the brake band 39 which constantly engages the drum 38 and' which has sufficient braking action to overcome the momentum of the `cable in this movement. Thisv compensates for the increased depth of the welle-shaft or'hole by lengthening the cable at each operation and insures uniform i- Vstrokes for the drill-bit at each operationI 'In Vorder to raise the bit from the well shaft, thelever is operated to throw in the clutch 32', which :causes the drum to rewind thecable 28 thereon.V 'To permit the cable 28 and the bit to be again lowered, the brake is released by operating the lever 53.

Havingthus described my invention what I claim is: A

l. Ardrilling machine, comprising a balance-beam and means for operating the same; a reel; a drill-bit; an auxiliary bitcarrying cable operated by said balance-- beam* and wound on said reel; a brake connected to said reel; means connected with v the balance-beam for automatically releasing said lbrake at the drill-bit dropping operation of` said balance-beam; and spring means fornormally maintaining said brake in operative position,

I2. A well-drilling machine, comprising an oscillating balance-beam and means for operating the same; a loose driving connection between said balance-beam and the operating means therefor, whereby the balancebeam may move independently of said operating means in its drilling movement and may be connected to the operating means during the return movement; a reel; a drill'- bit; a drill-bit-carrying cable wound on said reel; an adjustable brake for said reel; andV another brake connected with one end of the balance-beam soas to alternately hold and release the reel andthus the cable, at each oscillation of the balance-beam.

3. A drilling machine comprising a bit;

a bit-carrying cable; winding means for saidl Vso' cable; means for reciprocating said cable andbit in the well-shaft; and a brake for said winding means adapted to permit the Y unwinding of the cable at ea-ch operation of the reciprocating means an amount equal tok the increased depth of the well-shaft inci:V

A dental to the drilling operation, so as to maintain uniform the length of the repeated strokes of thebit by the reciprocating means. i In testimony whereof I have aiixed my signature. Y

Y MANUEL PRADO. 

